Gas turbine with cooling air cooling system and method for operation of a gas turbine at low part load
OwnerKlaus KNAPP, Klaus DOEBBELINGinventors
Life of this patent
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Abstract
A gas turbine and method for operating a gas turbine, includes a compressor, a combustor, a turbine and a cooling air cooling system having at least a first cooling air line going from a first bleed of the compressor to the turbine, and at least one second cooling air line at a downstream position of the compressor relative to the first cooling air line. A heat exchanger is arranged in the second cooling air line for cooling the extracted air of higher pressure. The heat exchanger is connected with an air inlet side of the compressor such that heat is transferred in order to heat up the inlet air of the compressor.
Claims16
A gas turbine comprising a compressor, a combustor, a turbine and a cooling air cooling system having at least a first cooling air line going from a first bleed of the compressor to the turbine, and at least one second cooling air line at a downstream position of the compressor relative to the first cooling air line, a heat exchanger arranged in the second cooling air line for cooling the extracted air of higher pressure, and in that the heat exchanger is connected with an air inlet side of the compressor such that heat is transferred in order to heat up the inlet air of the compressor.
A method for operating a gas turbine comprising a compressor, a combustor, a turbine and a cooling air cooling system having at least a first cooling air line going from a first bleed of the compressor to the turbine, and at least one second cooling air line at a downstream position of the compressor relative to the first cooling air line, in which a heat exchanger is arranged for cooling the extracted air of higher pressure and transferring heat from said heat exchanger to the compressor inlet air.
Dependencies are inferred from the claim text.